Cross

链接：戳这里 1694: Primorial vs LCM 时间限制: 4 Sec  内存限制: 128 MB [提交][状态][讨论版] 题目描述 Given N (2 to N. As the result might be too big, output it's modulo by 1000000007. For example, when N=5

链接：戳这里 1803: 2016 Time Limit: 5 Sec  Memory Limit: 128 MB [Submit][Status][Web Board] Description  给出正整数 n 和 m，统计满足以下条件的正整数对 (a,b) 的数量： 1. 1≤a≤n,1≤b≤m; 2. a×b 是 2016 的倍数。 Input 输入

链接：戳这里 D. Soldier and Number Game time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output Two soldiers are playing a game. At the beginn

链接：戳这里 D. Road to Post Office time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Vasiliy has a car and he wants to get from home to

链接：戳这里 abs Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Problem Description Given a number x, ask positive integer y≥2, that satisfy the fo

链接：戳这里 D. Symmetric and Transitive time limit per test1.5 seconds memory limit per test256 megabytes inputstandard input outputstandard output Little Johnny has recently learned about se

链接：戳这里 Just Random Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description 　　Coach Pang and Uncle Yang both love numbers. Every morn

链接：戳这里 Dertouzos Time Limit: 7000/3500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Problem Description A positive proper divisor is a positive divisor of a number

链接：戳这里 C. A Problem about Polyline time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output There is a polyline going through points (0, 0) 

链接：戳这里 D. As Fast As Possible time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output On vacations n pupils decided to go on excursion an

链接：戳这里 18: Array C Time Limit: 1 Sec  Memory Limit: 128 MB [Submit][Status][Web Board] Description    Giving two integers  and  and two arrays  and  both with length , you should cons

链接：戳这里 ztr loves math    Time Limit: 2000/1000 MS (Java/Others)   Memory Limit: 65536/65536 K (Java/Others) 问题描述 ztr喜欢研究数学，一天，他在思考直角三角形方程组的Lower版，即n=x^2-y^2  他想知道，对于给出的n，是否会有正整数解。 输入描述 有

链接：戳这里 C. Little Artem and Random Variable time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Little Artyom decided to study probab

链接：戳这里 The area Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Problem Description Ignatius bought a land last week, but he didn't know the are